Paper-feeding mechanism



June 24, 1930. P. M. COLQUHOUN ET AL "1,766,106

PAPER FEEDING MECHANISM Filed Dec. 6. 1927 4 Sheet-Sheet l June 24,1930. P. M. COLQUHOUN ET AL 1,

PAPER FEEDING MECHANISM Filed Dec. 6, 1927 4 Sheets-Sheet 2 A55 MI +5 Ia W.

@W 62W 11 Wr%m atto zmqo June 24, 1930'. P. M.'COLQUHOUN E A 1,766,

"' PAPER FEEDING MECHANISM Filed Dec. e. 1927, sh jets-sheet 3 June 24,1930. PVIM\.\COLQUHOUVN ET AL 1,

PAPER FEEDING MECHANISM Filed Dec. 6, 1927 4 SheetsSheet 4 30 to thegeneral operat i of "our complete Patented June 24, 1930 n males REEBQM-r OLQIIHMQIRN, Q fliAKEWQQD; z elqnwrm'lmmgn; JALLEN, eoru Henson-i01110,

' ASsIGNORS 1T0 aria: 'AMEBIGAN MULEIQRAHI; QOI'aPANY -QF,CLE ELAND; on-IA v, (PaeERT'E-Ehpme MEdl-IANIsMv "This. invention relates to mechanismfor i e onfine-en We f Pa e t h 'printing machine wherein a cont nuouslytht h ..1 int ns drum s ass iat d w t i an: intermittent loaper" 'feeol.,7 One cf the of paperin 'such mannei' that it will beaccuratelypresented for successive imprints though difl'erent gradesi or differentweights Q .P? P may h employe 2 tt st n this, wefind it important; tohave v paper feed 5 hhhhi ml hts lhu teh ehsly on t p reand We ejifecttively large area of eb,

- this by directingthe webg'ab ont' agp orti'onl o the p r phe y! 9fheffhe r miesains whichthe web isgipresseclfby "suitahletapes tensionecliabont; such por ion of the drum.

O ih ee imheh h im is s h ll We p ed tfo e pe et hi wi h fprih i s im hihe, hQWh th -,m 'gre1 h, wher i a. rotary priht h jd i Pm idecl"carrying suitable. cameo characters, "as

or t he in u i type strips.

Our invention includes Various featnres illustrated in the "drawings anclcontributing r I emb sse wh c Wi be hereinafter morefully: explainedin conn ection with such "plraw rigs. In, the ClI'2LWl Ilg S,'E1g. V llsa s de eleyat on h d g m h sm ;'-1 gs-[ 2 .hh ar vertical longitudinalsections of thelap-paratus shown in l in planes parallelwith Fig. l,'the location of these planes'being 0 indicated bylines 22gan=clg3ionjfigt. 4;

Fig. 4 is a vertical transverse section r heht x of he e' vdrumihs indcated by the line on lfig. l Fig.y5 is a detail; o me h nism o iseohhhtine" the se h e th mh t srephahdg Pape v frame plates 10 and 7 rings15 l6,, *rest ingf on v which f'platen roller is apparatus. ncludin th 3paper e d p ee multie'r p i mhqhihe h Plate .a sh 14 0, 1 Whi h arefmount'ed .77 w ment l'F shown as secn'recl to, the shaft; 1%} by f p'iheihoek hes mhn rr e u tiip hie hepnpw rd y froma base l Q-andjQnrnhlIed inthe'seiend able printing form which is illustrated feqneht el 'ja 2.0 T s-print n f rmhi be a blanket carrying embossed strips,as

shown in Patent No. 1,438,580, of: phrashhe h American ,Mul eph Camp r ai ri q eh i for ink ng th ,mule p ifo rm, iihr h or the. segm'ent 'maybe prov iolecl{with.rails carrying indiviclnal type, r the multigraph.Suitable means islproyid ed r edin the segment'drum and carrying a rihhQ.v 2. Qv rlyih h t MOllIltQd in. the frame' members jof, the I 7O 7 iiul ie epha p ra le ith th dr m sh ft, is a platen shaft 30. On thisshaitis ro-- tatahly mounted arnlober faced pletenroller 81 adapted tocoact with the form; '{lhis ohh ht by K i er 1 9' agear 34 on the drum.

t ngthe present mechanism as ti mp t feecl the paper perio clicallybetween the 111111- t s eP d um a platen; nd. W mhyf ils provide.mechanism for autQll htiQally' reroll- 'r hgflthe M r The frame of thepaper feedmechanism printed Web.

perse comprises a pair of upright platesLO ancltl secured to aseitablebase 4L2. Jqurnalled in these upright platesis'a shaftgtt.

ha i g a smh fihhylih ehl per p yacting with th drum forabont half itsci'r ,cum' ference 'arenseyeral endless belts 150,,

three being shown. Thesebeltsdloop, over a roller 51' above the drum -45sea a roller 52' the central vertical plane of therlrum. 'fThe ti eframe plates.

Ie ihh sp ngs. 56.1wing on these levers tend to swing thefroller machineWe a combine such 111st descrlbecl w th a paper Cfeed olrum gearedW1ththemul Rigidly mounted :on this shaftis a jclru m" 45 v .54 awayfrom the drum 4:5, and thus tension 7 the belts,

maintaining the inner reach tight ag'ainstthe drum for about half itsperiph-. ery. The belts are driven in correspondence withtheperipheral-movement of the drum by a gear 57 on the drum operatingidlers 58 to' a gear'59' on the roller 52. i

the belts and the drumc l5, beneath the roller: w 51 and thence passesaround the'front halt ofthe drum' 415, and then over the roller 52 tothe multigraph.

i is shown at A in Figs.

, in'g an axial rod 60'restingin {brackets 61 suitably carried. providedin the for V 'heavy plate-63 adjustably carried on rods 7 resting bygravity against Troll. From j over' a guide rolie'r 'ZtS, thence to aguide .1 roller, 89, and thence toward the, front beneath' the beltroller 51,'and between the belts periphery ofthe drum,

' intermittently;

thef form of a roll,A.

jtop of the; belts 'mechanism per se',

drum and its platen, 'desired."

The web ot paper is fedintof the grip of v land The paper is'supplied tothe machine in Fig.1, and this roll is suitably mounted, as for.instance, by hayrecesses in A brake is comparatively at oneend, theweight the surface ofthe the roll the web passes upwardly 64; pivotallysupported and the drum.

drum leaving the underside of the The webA passes from the drum on aratchet mechanism, best illustrated in Figs.

2, e and 6, and which will now the shaft 4A of the paper of a gear 91-,this gear normally meshing with an idler multigraphgear34,mentioned. Theloose As is, shown,'we have mounted freely on teed drum the hub '92which meshes with the gear 91 has pivoted to it a pawl 93 2land 6)Iwhiohis adapted to coact with a ratchet wheel 95 which is: rigidly connectedwith the feed drum ratchet wheel rigidly mounted on a'sleeve "hub; 96which extends plate 45. ,VVe, have shown the through the frame A0 andispinned at 97 to the shaft 44,

' the drum45 being. also pinned to this shaft. 7 It results thattherotation of the multigraph Y gdrurn may deliver a correspondingrotation tothe drum 4 5.(the gears 34 and91 being ran same diameter) ,solong asthe pawl 93- engages the ratchet 95.

The period of engagement of the pawl 93 with the ratchet 95 isdetermined by a compound cam 100, 101 on which rides a'roller ignated10o,

QSuch web of paper "against the plate 100,so

, length of drivingpawl 93 idle, allows thatpawl 'with the ratchetteeth, under the influence of the spring 98, forv an angular distanceuntil it leaves the feed print.

be described.

"97 carried by the pawl, this roller. being pressed against theperiphery of the cam by a" spring 98 secured to the gear at 99.

The cam is of an adjustable extent and prec terably comprises two rlngsside by side. As

these rings, desillustrated in Fig. at, one of as shown to the may besecured frame member 40, and the other may be loose upon a clamping ring105, which may 'besupp'orte'd by screws 106 mounted in the frame plate.These screws will thus serve to dra'wlthe plate 101 tightly a unitarystationary cam, th'esescrews the ring 1O1 may be shitted-circumferentially, and thus ivary the cam region,

ring y T that theyact as p but by loosening I the arouate' Both "therings have a concentric periphery for a consider- I able portion oftheir extent. '2' y f w i The camregionis adjusted in extent withreference to' the arcuate length otthe form V 20 on themuitigraph drum.The concentric portion of the compound cam maintains the. but the camregion to come into engagement at least as great as'fthat'oftheiormifZO, so I that'p'aper is fed suffieiently for thef formlto Thelength of the non-concentric region or the canidetermines the durationfof thefeed of the paper. 1

' To prevent displacement otthe web or 7 .overfeeding by-momentuin, weemploy the 1 tollowlng mechanism. On. the shaft .4 41: of f theiifeeddrum, outside otthe'plate 40, is a brake band 111,-the endportionslofwhich have blocks 112and 113 mountedjon them. 7.

Arod 114 pivoted to one of these blocks IeX tends. loosely through'theother and beyond.

the block is" surrounded by a compression spring 115 adjustably.compressedby nuts 116.

About 111 there is secured to it ablock 117 which the inidregion of thebrake band i is pinned to the frame plate 40. The spring f 115 is soadjustedthat the friction on'the brake drumwill lock the, braketothedrum against displacementwhen there is no power on the drum, butthefriction is not sufficient tointerfere. with the normalpower dr ving thedrumindependently. Accordinglypowrotate it but when the er on the drumwill will CQiDQ'tO power-is taken away the druni an immediate stop. 7 fe The multigraph isfrequently mounted on the top of a plate carryingpowertransmit ting gearing,'which plate is mounted on top of a suitablestand. Our-paper teed mechanism readily have'itsframe and other partsconnectedto such multigraph support.

Thus, as shown in Figs. 1,2 and 3, the nulf tigraph frame restson aplate which rests on top of a usual We may arrange the base "plate 42 ofthe tubular stand 141.

paper .i'eed with horizontal -i"range .1 42

ands of the multigraph frame 141.

(Fig. 3.). adiagverfie lflange 143 engaging ,the top and [vertical wallof the multigraph transmission .fra'melOf' Suitable screws as 145 ,maylock the paperieed framei-tothe multigraph transmission-plate. At its,oppo site edge the paper teed framemaybe readily supported by uprightstandards 147.- The rod 6,4. carrying the" braking weight. 63

[may readily" be. a 'rockfarml on a. shaft 65 journalled in brackets 148clamped to tand- The paper roll supports-61mayzbe clamped to thestandards 147 of the paper feed.

The construction just described is simple and inexpensive and has theadvantage of intimately connecting the paper feed frame with themultigraph support and at the same time does not interfere with themultigraph being lifted ofl'of its support, whenever desired, withoutdisturbing the paper feed.

We have shown the multigraph as driven by gearing carried by the platewhich rests on the multigraph stand. As shown in Fig. 1, this plate hassuitable bearings in V .oe

which is journalled a shaft 150 carrying'a driving pulley 151. A belt152 is shown as running onto this pulley from a suitable motor 153. Atthe end of the shaft 150 is a gear (Figs. 1 and 2) whichmay mesh withthegear 33 of the platen, which in turn meshes with the gear 84 of themultigraph drum. As this gear 34 is connected through the idler 92 withthe paper feed, it will be seen that the motor 153 supplies the powerfor both the multigraph and thepaper teed. Thisjsame power may operatethe takeoff roll, if one is employed. a I

1 As shown, the printedweb passes from the bite of the platen roll andprinting segment of the multigraph over a roller 160,

suitably journalled in the end frame plates I mally connecting them,shiftable on .its supporting rod 200. We may effect this by a pushbutton 201 (Fig. 5) on the end of arod 202 carrying a shipper fork 203,occupying a groove in the idler 92. The spring 205 normally maintainsthe idler in an engaged position but allows it tobe moved inwardly outof engagement whenever desired.

It will be understood from the description above given of the embodimentshown in the drawings, that we have provided a comparamo-ve' at the samewhich will result in feeding a continuous web of paper to it, in amountscorresponding to the extent of the for m 9f themultigraph drum.Theprinted web may be disposed of fan-folding it if desired, but we haveshown it being wound on a spool. H

Weclaim: I .1. The combination, ,with a .mul tigraph comprising a rotarydrum and an impression platen, ofapaperieed drum arranged-$0 speed asthe multigraph drum, a gear mounted coaxially with said paper feed drumand constantly, geared with the multigraph, and I settable means forauto- 'matically connecting anddisconnecting said gear to the paper feeddrum'durin'g aportion of one rotation of the multigraphdrunn 2. Thecombination with arotaryprinting couple, one member of p whichis'ada-pted to carry a segmental printing .gform,i,a paper feed drum,

the paper feed drum, a,pawl.earried.by the driver and adapted to engagesaid toothed wheel, anda cam. for controllingfthe ti ne the pawl 1s inengagement.

The combination. with a printing oouple, of a paperfeed.thereforlcomprisingaa a driver forsaid drumgeared with the rotarycouple, a. toothed wheel onil,

:tively simpleadjunctlfor the multigraph r10 by shearing off SGCtIOlISO1' tlIG web co-rre-" ,spondingto the amount tobefprintedpor rotarydrum, a rotarydriver therefor, {a

. toothed wheel on the drum, ;.a. pawl carried by the driver andadaptedto; coactwith the drum, and r adjustable oam causing theconnection and disconnectiong between the pawl and toothe d wheel: y

wet. The combinationqvitharotaryprinting couple of apaper feed drum,aset ,ofe adless tapes embracing the same, means fo'rguiding acontinuous web of paper, from a rollthere of into position between'thetapesanddrum and thence "to the printing couple, atoothed' wheelrigid with the drum, drivh g; device, .a pawl carriedthereby to.engagethe toothed wheel, and an adjustabledevice for controlling, thevpawl.

5. The combination a pril riti ligv .ple ofa paper feed: drum,- a setEofgendl'ess tapes embracing the same, meansforguadng acontinuousi-webof paperfrom a roll thereof into position'between the tapesand drumand'thence to the printing couple, a toothed'wheelaat one end ofthe drumand rigid therewith, a rotary driving device c.0-

engage the toothed wheel, and a cam of ad:-

axial of the drum, a pawl carried thereby to justable length forcontrolling the period of engagement of the pawland toothed wheel. 2 6.The combination-of a rotary printing.

couple, of a paper feed drum with-its axis parallel with the axis of thecouple a ratchet v a concentrically 1 wheel frigid therewith,

mounted irotary driver at the end of the drum, a, pawl carried'therebyand adapted. to

I 7 fleoact vvithithe ratchetYvvheel, a cam of ad- 7 *justable lengthforfeontrolling the timeof coaction'ofthepawl, endless tapesembracyingfthe drum, means for'supporting a roll joii paper] andmeansffor 'guiding'the web 'thereof' tupwardly and then laterally over ithe Staples and drum and thence downward-V ly and backvvardly'betweenthe tapes and drum and thence to the prlnting couple, and 7 means forapplying tension to the Web;

7. The combination With a rotary printing couple of meansfor feedingcomprising the following cooperating in strunientalities, namely a paperfeed-drum, v Z a'drivinggear therefor rotatable independently thereoiatoothed Wheel on the paper;

Pepe r thereto feed drum, a pawlon the driving gear, an

dru'mpa feed drum eonstantlylengaging 'a continuous Web of paper forfeeding it tor the pass'of the printing drum and platen,

a gear concentric of the feed drum and constantly. geared With theprinting drum, and" means for periodically establishing andinterruptingconnection between said concenf tric gear and the paper feed'drumWhilethe printing drum rotates continuously."

In testimony whereof, We our s gnatures.

' PETER M. COLQUHOUN,

I I MB. ALLEN. j 1

:radjustable cam adapted to cause themovee "ment of the pawl into andout of coaetion with the toothed ivheelon each'rotati'on of Ithee/driving gear,,and a friction bral-:e-con- 'stantly acting on thefeeddrum. V 8. The eombinationef a rotary printing drum adapted to carrya segmental printing form, a rotary underrunning platen, geared thereto,a paper {feed drum of the same diameter asthe printingidrnm and mountedon a parallel axis, a driving gear concentric'with the paper feed drurnlocated at one end tion of the driving igear.

:9. The combination of rotary printing drum adapted to'earr y'asegmental printing form, a rotary platen geared thereto, a paper 7 feeddrum mounted on" a parallel axis, a

driving gear for the paper feed drum geared With-the printing'drum andplaten, a ratchet,

' 'vvheel' on theipaper feed drum, a pawl on' to cause the movementoit'ithe pawl into and the driving gear, an adjustable cam adapted outof "coaction With the: ratchet on each rotationiof the driving gear,andabrake actjingfrietionally on thefeed drum lO. The combination ofarotary pr nting form, a rotary platen geared thereto, a paper I andplaten.

drum adapted to carry a segmental printing feed" drum, arotary memberfor driving the paper feed drum geared with the printing drum andplaten, a releasable'connection'betvveen said memberand the paperfeeddrum, means adapted to cause such release, a set of endless beltsembracingthe'paper feed drum, andmeans for guldlng a continuous Web ofpaper between the belts and paperj feed drum and thence between theprinting drum; 7

11. The combination with rotary printingdrum having a segmental formextending materially less than the periphery of the "drum, a rollerplaten -coacting vvith the hereunto affix 'iso,

